You may find some relevant info in this thread of a month ago: http://tech.groups.yahoo.com/group/QuadtoneRIP/message/7894 Joost
Message
Re: Gloss Optimizer R800 / R1800 & QTR & Epson Luster Paper
2009-08-06 by Joost Horsten
Yahoo Groups archive
Message
2009-08-06 by Joost Horsten